The 777 didn't have an unreliable/airspeed checklist
Eh? We've always had one! Just finished a Sim Phase in which we used it- a big take-away was that it didn't provide sufficient information for low level flight and approach- addressed with the current update.
HOWEVER- 4deg and 70% N1 as a memory item?
That DOES concern me.
It sounds lie a recipe for AF447 Mk2!!